OpenSSH 8.8 dropped SHA-1 support
OpenSSH is a funny beast. It keeps changing like no other SSH client does. Last time I bumped my head into format of private key. Before that when CBC-ciphers were removed.Something similar happened...
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macOS Monterey upgrade
macOS 12, that one I had been waiting. Reason in my case was WebAuthN. More about that is in my article about iOS 15.The process is as you can expect. Simple.Download is big-ish, over 12...
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MySQL Java JDBC connector TLSv1 deprecation in CentOS 8
Yeah, a mouthful. Running CentOS 8 Linux, in Java (JRE) a connection to MySQL / MariaDB there seems to be trouble. I think this is a transient issue and eventually it will resolve itself. Right now the...
View ArticleDatabricks CentOS 8 containers
In my previous post, I mentioned writing code into Databricks.If you want to take a peek into my work, the Dockerfiles are at https://github.com/HQJaTu/containers/tree/centos8. My hope, obviously, is...
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EU Digital COVID Certificate, December 2021 edition
Since my August blog post about vacdec, the utility to take a peek into COVID-19 passport internals, I've got lots of feedback and questions. The topic, obviously, touches all of us. As this global...
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Passwords, December 2021 Follow up
This year, I've done quite a few posts about passwords. There are still couple days left before 2022 begins, so another piece about passwords is needed.Most commonly used passwordsFor reason not really...
View ArticleDecoding EU Digital COVID Certificate into human-readable format
Since I started working with vacdec, something has been bugging me. I quite couldn't put my finger on it at first. As a reader asked me to decode some unix timestamps from CBOR payload into...
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Write Clean Code — or else …
Anybody who has written any significant amount of code into a software project will (painfully) eventually learn how the code should have been written in its early days.This phenomenon has happened to...
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Playstation 5
With bit of a lucky strike, I got a possibility of purchasing one. Ok, lots of luck happened. Bottom line: now I own one of the most coveted gaming consoles. For anybody reading this in 2023 (or after)...
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EU Digital COVID Certificate trust-lists
It seems vacdec is one of my most popular public projects. I'm getting pull requests, comments and questions from number of people.Thank you for all your input! Keep it coming. All pull requests, bug...
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EU Digital COVID Certificate usage in the World
In my previous post, I gave some statistics about which countries have issued how many X.509 certificates for signing the COVID Certificates. Also, I realized how adoption of this open-source system in...
View Articlepkexec security flaw (CVE-2021-4034)
This is something Qualsys found: PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)In your Linux there is sudo and su, but many won't realize you also have...
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Sanuli-konuli - Wordle solver
Wordle is a popular word game. In just a couple months the popularity rose so fast New York Times bought the whole thing from Josh Wardle, the original author.As always, a popular game gets the cloners...
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Databricks CentOS 8 stream containers
Last November I created CentOS 8 -based Databricks containers.At the time of tinkering with them, I failed to realize my base was off. I simply used the CentOS 8.4 image available at Docker Hub. On...
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Sanuli-Konuli RPA-edition
Previously I wrote a Wordle-solver, Sanuli-Konuli. The command-line -based user-interface isn't especially useful for non-programmers, so I took the solver a bit further and automated the heck out of...
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Gran Turismo 7
I've taken a pause from blogging, lots of things happening on the other side of the blog. Been doing tons of coding and maintaining my systems. Aaaand playing GT7:I've played Gran Turismo since version...
View ArticleFedora 35: Name resolver fail - Solved!
One of my boxes started failing after working pretty ok for years. On dnf update it simply said:Curl error (6): Couldn't resolve host name for...
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Diverse spam
It seems detecting and blocking email spam is easy. That's something I stated in my blog post back in 2020.Here I'm introducing three types of spam I'm getting.Spam from free email accountsBut wait!...
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Megazoning (or Laser Tagging) part 2, Year 2022 edition
Quite close six years ago, I posted about my visit in Megazone. Now I got to go there again. This time there were more of us and we had a private game for the company.Round 1This was me getting the...
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Google Analytics 4 migration
For number of reasons, instead of migration, I should write migraine. First is about moving from an old system into a new one. Latter is about medical condition causing severe headaches. In this case,...
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